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SMBJ48D-M3

Public Made by Adom

by adom

Vishay Intertech ESD And Surge Protection (TVS/ESD), SMB(DO-214AA). Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

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SMBJ48D-M3

Vishay Intertech · ESD And Surge Protection (TVS/ESD) · SMB(DO-214AA)

SMBJ48D-M3 from Vishay Intertech, in a SMB(DO-214AA). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 K passive Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint.
2 A passive Anode.

Key specifications

Parameter Value
Manufacturer Vishay Intertech
Package SMB(DO-214AA)
Category Circuit Protection
Pins 2

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Breakdown voltage VBR 54.1 58.1 V at IT = 1.0 mA 2
Maximum reverse leakage at VWM ID 0.5 µA at VWM = 48 V 2
Maximum peak pulse surge current IPPM 7.9 A surge current waveform per fig. 3, derate per fig. 2 (note 3) 2
Maximum clamping voltage VC 76.3 V at IPPM 2
Peak pulse power dissipation PPPM 600 W 10/1000 µs waveform (note 1) 1
Power dissipation PD 5 W TM = 50 °C, mounted on infinite heatsink (note 2) 1
Power dissipation PD 1 W TA = 25 °C, mounted on minimum recommended pad layout (note 3) 1
Operating junction and storage temperature range TJ, TSTG -55 150 °C operating junction and storage 1
Typical thermal resistance, junction to ambient RθJA 125 °C/W mounted on minimum recommended pad layout (note 1) 3
Typical thermal resistance, junction to ambient RθJA 100 °C/W mounted on 5.0 mm x 5.0 mm copper pad area (note 2) 3
Typical thermal resistance, junction to mount RθJM 20 °C/W 3

CAD (KiCad official)

  • Symbol: SMBJ48D-M3
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
  • 3D model files: smbj48d-m3-etched.step / smbj48d-m3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smbj48d-m3.step / smbj48d-m3.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Vishay Intertech datasheet (5 pp, sha256 c1e92b4c130e4dc1, retrieved 2026-10-15, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary cathode-band convention (convention), consensus off (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF